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Astable multivibrator

11 months ago 82
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Description

THIS IS A SIMPLE ASTABLE MULTIVIBRATOR FOR PWM IT USES ST13005 NPN FAST SWITCHING TRANSISTORS COLLECTOR RESISTOR OF 100K BASE POTENTIOMETER OF 10K THE ON TIME PERIOD = 0-4ms OFF TIME PERIOD =0-15ms (FOR PORT 2 VALUES INTERCHANGES THE THREE PINS REPRESENT BASE COLLECTOR EMITTER FROM TOP TO BOTTOM

CAPACITOR = 2.2uF ELECTROLYTIC P2 IS USED TO CONTROL PWM OF PORT1 ,VICE VERSE.

Documents

Sheet_1

BOM

ID Name Designator Footprint Quantity Mounted
1 10K R1,R2 RES-ADJ_3386P 2 Yes C125022
2 2.2UF C1,C2 CAP-D3.0XF1.5 2 Yes
3 100K R3,R4 AXIAL-0.3 2 Yes
4 Header-Female-2.54_1x2 P1,P2 HDR-1X2/2.54 2 Yes C49661

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